"Additionally, Tompkins admitted to receiving kickbacks from the inflated tax refunds and creating fake documentation that was meant to support the filers' business income," the Justice Department said.

Tompkins faces up to eight years in prison and fines of up to $350,000. She is scheduled to be sentenced on March 19.

Tompkins was charged along with three other Liberty tax preparers in a 14-count indictment in February.

Shalonda Burns, 41, and Latoya Bush, 38, both of Milwaukee, previously pleaded guilty to the same charges. A fourth defendant, Lori Ann Stringfellow, 55, has sought a competency evaluation, according to electronic federal court records.